China is too busy making money to want to go to war. Globally linked economies are a great way to reduce the threat of war.
This is one of the reasons I want the US to have economic treaties with countries like Cuba, North Korea, and Iran.
Capitalism is a good path to democracy albeit a slow path at times. Whether you are a socialist or a fascist or anywhere in between, everyone likes to make money and buy stuff.
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About the only thing that unites all of humanity is the desire of parents to have their kids have a better life.